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Square! (lemmy.zip)
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[-] masterofn001@lemmy.ca 139 points 1 day ago

Wouldn't the angles need to be interior?

[-] Maven@lemmy.zip 165 points 1 day ago

They are all interior to the meme

[-] Kolanaki@yiffit.net 11 points 1 day ago

This meme seems to be in a 16:9 ratio making it a rectangle.

[-] agamemnonymous@sh.itjust.works 11 points 18 hours ago

This is merely a projection of a square on the surface of a cone projected onto a plane.

[-] fahfahfahfah@lemmy.billiam.net 48 points 1 day ago

also the sides must be straight

[-] Maven@lemmy.zip 172 points 1 day ago

It's 2024 now... Not everyone has to be straight anymore!

[-] marcos@lemmy.world 19 points 1 day ago

If you want to claim you are a square, you need.

[-] stupidcasey@lemmy.world 13 points 1 day ago

WOW! just wow, do you hear yourself?

[-] thesporkeffect@lemmy.world 4 points 22 hours ago

Believe it or not, straight to jail.

[-] Tolookah@discuss.tchncs.de 20 points 1 day ago

Polar coordinate straight

[-] Knock_Knock_Lemmy_In@lemmy.world 2 points 18 hours ago

Define straight in a precise, mathematical way.

[-] ltxrtquq@lemmy.ml 7 points 17 hours ago

The tangent of all points along the line equal that line

[-] wholookshere@lemmy.blahaj.zone 1 points 12 hours ago* (last edited 12 hours ago)

Only true in Cartesian coordinates.

A straight line in polar coordinates with the same tangent would be a circle.

EDIT: it is still a “straight” line. But then the result of a square on a surface is not the same shape any more.

[-] ltxrtquq@lemmy.ml 2 points 11 hours ago

A straight line in polar coordinates with the same tangent would be a circle.

I'm not sure that's true. In non-euclidean geometry it might be, but aren't polar coordinates just an alternative way of expressing cartesian?

Looking at a libre textbook, it seems to be showing that a tangent line in polar coordinates is still a straight line, not a circle.

[-] wholookshere@lemmy.blahaj.zone 1 points 3 hours ago

I’m saying that the tangent of a straight line in Cartesian coordinates, projected into polar, does not have constant tangent. A line with a constant tangent in polar, would look like a circle in Cartesian.

[-] ltxrtquq@lemmy.ml 1 points 1 hour ago

Polar Functions and dydx

We are interested in the lines tangent a given graph, regardless of whether that graph is produced by rectangular, parametric, or polar equations. In each of these contexts, the slope of the tangent line is dydx. Given r=f(θ), we are generally not concerned with r′=f′(θ); that describes how fast r changes with respect to θ. Instead, we will use x=f(θ)cosθ, y=f(θ)sinθ to compute dydx.

From the link above. I really don't understand why you seem to think a tangent line in polar coordinates would be a circle.

[-] Rinox@feddit.it 2 points 18 hours ago

I knew math was homophobic!

[-] LodeMike@lemmy.today 10 points 1 day ago

This is also not a polygon. It has infinite and 2 sides at the same time.

[-] tate@lemmy.sdf.org 6 points 23 hours ago

This actually has six right angles if you include exterior ones.

this post was submitted on 21 Sep 2024
1144 points (97.1% liked)

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